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Hello all, I have a big birdsnest and it seems that he is bleaching from the bottom. My question are is he started to die or it is just because since it is really big the bottom don’t receive any light ? All the polyp are fully opened that’s why I’m confused Thanks in advance I have...

Hi all, Recently I’ve become concerned for my leather toadstool coral. It has been in my established tank for 2 weeks without issue. It began to look wrinkly and mucous-y a few days ago. I figured it was shedding. Then I had a new diatom outburst in my tank. I’ve managing the outburst, but now...

I had watched a short documentary on Typhoid Mary and how she passed the disease on to so many others without being affected at all. So I was wondering if the same thing could happen with fish. For example: quarantine a fish for 2 months, no symptoms, but then when you add that fish to your...